$B$ and $B_s$ Meson Spectroscopy

TL;DR

This paper predicts properties, decay rates, and potential observability of excited bottom and bottom-strange mesons using relativized quark models and decay calculations, aiding future experimental searches.

Contribution

It introduces detailed predictions of masses, decay widths, and branching ratios for excited $B$ and $B_s$ mesons using relativized quark models and decay frameworks.

Findings

Numerous excited $B$ and $B_s$ mesons are predicted to have narrow widths.

Predicted decay channels include $B o B ext{(final states)}$, $B^* o B^* ext{(final states)}$, etc.

Some states have significant branching ratios to simple final states, making them observable.

Abstract

Properties of bottom and bottom-strange mesons are computed in two relativized quark models. Model masses and wavefunctions are used to predict radiative transition rates and the $^3P_0$ quark pair creation model is used to compute strong decay widths. A comparison to recently observed bottom and bottom-strange states is made. We find that there are numerous excited $B$ and $B_s$ mesons that have relatively narrow widths and significant branching ratios to simple final states such as $B\pi$, $B^*\pi$, $BK$, and $B^*K$ that could be observed in the near future.